Sum-frequency vibrational spectroscopic study of a rubbed polymer surface

Authors
Wei, X Zhuang, XW Hong, SC Goto, T Shen, YR
Citation
X. Wei et al., Sum-frequency vibrational spectroscopic study of a rubbed polymer surface, PHYS REV L, 82(21), 1999, pp. 4256-4259
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
21
Year of publication
1999
Pages
4256 - 4259
Database
ISI
SICI code
0031-9007(19990524)82:21<4256:SVSSOA>2.0.ZU;2-L
Abstract
Sum-frequency vibrational spectroscopy has been used to probe the chain ori entation of polyvinyl alcohol at the surface after rubbing. The distributio n function of the chain orientation is determined quantitatively. The orien tational order parameter of the chains deduced from the distribution matche s well with that of a liquid crystal monolayer deposited on the polymer, pr oving that the polymer surface can align a liquid crystal film through orie ntational epitaxy. [S0031-9007(99)09202-9].